EUCHNER MSC - 9.3.2. Speed range monitoring (WINDOW SPEED CONTROL)

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MEMORY OPERATORS
Operators of the type MEMORY make it possible to save data (TRUE or FALSE) that come
from other project components.
Status changes are undertaken according to the truth tables given for each operator.
D FLIP-FLOP (max. number = 16)
Using the D FLIP-FLOP operator the status
set previously on the Q output is saved
according to the following truth table.
Preset
Clear
Ck
D
Q
1
0
X
X
1
0
1
X
X
0
1
1
X
X
0
0
0
L
X
Retain
memory
0
0
Rising edge
1
1
0
0
Rising edge
0
0
Parameters
Enable Preset: If selected, the Q output can be set to "1" (TRUE).
Enable Clear: If selected, the memory process can be reset.
SR FLIP-FLOP
Using the SR FLIP-FLOP operator the Q
output is set to "1" using Set and "0" using
Reset.
See truth table below.
SET
Reset
Q
0
0
Retain
memory
0
1
0
1
0
1
1
1
0